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research article

Dynamics of sheet nacre formation in bivalves

Rousseau, Marthe
•
Meibom, Anders  
•
Geze, Marc
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2009
Journal Of Structural Biology

Formation of nacre (mother-of-pearl) is a biomineralization process of fundamental scientific as well as industrial importance. However, the dynamics of the formation process is still not understood. Here, we use scanning electron microscopy and high spatial resolution ion microprobe depth-profiling to image the full three-dimensional distribution of organic materials around individual tablets in the top-most layer of forming nacre in bivalves. Nacre formation proceeds by lateral, symmetric growth of individual tablets mediated by a growth-ring rich in organics, in which aragonite crystallizes from amorphous precursors. The pivotal role in nacre formation played by the growth-ring structure documented in this study adds further complexity to a highly dynamical biomineralization process. (C) 2008 Elsevier Inc. All rights reserved.

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Type
research article
DOI
10.1016/j.jsb.2008.11.011
Web of Science ID

WOS:000263422300008

Author(s)
Rousseau, Marthe
Meibom, Anders  
Geze, Marc
Bourrat, Xavier
Angellier, Martine
Lopez, Evelyne
Date Issued

2009

Published in
Journal Of Structural Biology
Volume

165

Start page

190

End page

195

Subjects

Biomineralization

•

Calcium carbonate

•

Nacre

•

Sem

•

Sims

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Amorphous Calcium-Carbonate

•

Pinctada-Margaritifera

•

Shell

•

Mollusca

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Layer

•

Ultrastructure

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Calcification

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Organization

•

Particles

•

Aragonite

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LGB  
Available on Infoscience
May 15, 2012
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/80400
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